CN114538772B - Glass, glass element and optical filter - Google Patents

Abstract

The invention provides a kind of glass, said glass is represented by mole percentage, cationic component contains: P ⁵⁺ : 51-72%; Al ³⁺ : 0-10%; Cu ²⁺ : 5-25%; Rn ⁺ : 5-25%; R ²⁺ : 1-18%; Ln ³⁺ : 0-8%, the Rn ⁺ is one or more of Li ⁺ , Na ⁺ , K ⁺ , and R ²⁺ is Mg ^{2 +} , Ca ²⁺ , Sr ²⁺ , Ba ²⁺ one or more, Ln ³⁺ is one or more of La ³⁺ , Gd ³⁺ , Y ³⁺ ; the anion component contains O ^{2 ‑} and ^F‑ , the total content of O ^2‑ and ^F‑, O ^2‑ + F ^‑, is more than 98%. Through reasonable component design, the glass obtained by the invention has excellent internal quality, excellent transmission properties in the visible region and excellent absorption properties in the near-infrared region.

Description

Glass, glass components and filters

technical field

The invention relates to a glass, in particular to a near-infrared light absorbing glass.

Background technique

In recent years, the spectral sensitivity of semiconductor imaging elements such as CCD and CMOS used in digital cameras, camera phones, and VTR cameras has spread from the visible field to the near-infrared field. Using filters that absorb light in the near-infrared field can obtain Approximate to human visual sensitivity. The wavelength of visible light that ordinary human eyes can perceive is between 400 and 700nm. Therefore, an image with a brightness factor close to that of the human eye can be obtained by using a filter that absorbs near-infrared light. As people's demand for filters for color sensitivity correction continues to grow, correspondingly higher requirements are placed on the near-infrared light-absorbing glass used to manufacture such filters. Excellent transmission characteristics and excellent absorption characteristics in the near infrared region. Near-infrared light-absorbing glass in the prior art usually contains a large amount of fluorine (F ^- ), such as Chinese patent CN102656125A, in the case of a large amount of fluorine, the fluorine volatilizes during the glass melting process, causing streaks and internal Inhomogeneity and other defects, the intrinsic quality of the glass is difficult to meet the requirements.

Contents of the invention

Based on the above reasons, the technical problem to be solved by the present invention is to provide a glass with excellent intrinsic quality, excellent transmission properties in the visible region and excellent absorption properties in the near-infrared region.

The technical scheme that the present invention solves technical problem adopts is:

(1) A glass, expressed in molar percentage, the cationic component contains: P ⁵⁺ : 51-72%; Al ³⁺ : 0-10%; Cu ²⁺ : 5-25%; Rn ⁺ : 5-25% %; R ²⁺ : 1-18%; Ln ³⁺ : 0-8%, the Rn ⁺ is one or more of Li ⁺ , Na ⁺ , K ⁺ , and R ²⁺ is Mg ²⁺ , Ca One or more of ²⁺ , Sr ²⁺ , Ba ²⁺ , Ln ³⁺ is one or more of La ³⁺ , Gd ³⁺ , Y ³⁺ ;

The anion component contains O ^2- and F ^- , and the total content O ^2- + F ^- of O ² - and F ^- is more than 98%.

(2) The glass according to (1), characterized in that, expressed in molar percentage, the cationic component further contains: Zn ^{2 +} : 0-10%; and/or Si ⁴⁺ : 0-5%; and/or Or B ³⁺ : 0-5%; and/or Zr ⁴⁺ : 0-5%; and/or Sb ³⁺ +Sn ⁴⁺ +Ce ⁴⁺ : 0-1%.

(3) A glass, expressed in molar percentage, the cationic components are: P ⁵⁺ : 51-72%; Al ³⁺ : 0-10%; Cu ^{2 +} : 5-25%; Rn ⁺ : 5-25% %; R ²⁺ : 1~18%; Ln ³⁺ : 0~8%; Zn ²⁺ : 0~10%; Si ⁴⁺ : 0~5%; B ³⁺ : 0~5%; Zr ⁴⁺ : 0~5%; Sb ³⁺ +Sn ⁴⁺ +Ce ⁴⁺ : 0~1%, the Rn ⁺ is one or more of Li ⁺ , Na ⁺ , K ⁺ , R ²⁺ is Mg ^{2 +} , Ca ²⁺ , Sr ²⁺ , Ba ²⁺ one or more, Ln ³⁺ is one or more of La ³⁺ , Gd ³⁺ , Y ³⁺ , the anion component is O ^{2 -} and F- ^.

(4) The glass according to any one of (1) to (3), the components of which are represented by mole percentage, wherein: Al ³⁺ /Ln ³⁺ is 0.2 or more, preferably Al ³⁺ /Ln ³⁺ is 0.2 to 20.0, more preferably Al ³⁺ /Ln ³⁺ is 0.5-15.0, still more preferably Al ^{3+ /Ln 3+ is 1.0-10.0, still more preferably Al 3+ /Ln 3+ is 1.5-8.0} .

(5) The glass according to any one of (1) to (4), the components of which are represented by mole percent, wherein: Li ⁺ /(Mg ²⁺ +Al ³⁺ ) is 0.4 to 10.0, preferably Li ⁺ /( Mg ²⁺ +Al ³⁺ ) is 0.6 to 7.0, more preferably Li ⁺ /(Mg ²⁺ +Al ³⁺ ) is 1.0 to 5.0, more preferably Li ⁺ /(Mg ²⁺ +Al ³⁺ ) is 1.2 to 3.0 .

(6) The glass according to any one of (1) to (5), the components of which are represented by mole percentage, wherein: Cu ²⁺ /Al ³⁺ is 1.0 to 15.0, preferably Cu ²⁺ /Al ³⁺ is 2.0 ~10.0, more preferably Cu ²⁺ /Al ³⁺ is 3.0-8.0, still more preferably Cu ²⁺ /Al ³⁺ is 4.0-7.0.

(7) The glass according to any one of (1) to (6), the components of which are expressed in molar percentages, wherein: (Cu ²⁺ +Mg ²⁺ )/(Li ⁺⁺ +Al ³⁺ ) is 0.3 to 6.0 , preferably (Cu ²⁺ +Mg ²⁺ )/(Li ⁺ +Al ³⁺ ) is 0.5-5.0, more preferably (Cu ²⁺ +Mg ²⁺ )/(Li ⁺ +Al ³⁺ ) is 0.7-3.0, More preferably, (Cu ²⁺ +Mg ²⁺ )/(Li ⁺ +Al ³⁺ ) is 0.8 to 2.0.

(8) The glass according to any one of (1) to (7), the components of which are represented by mole percentage, wherein: Ln ³⁺ /R ²⁺ is more than 0.01, preferably Ln ³⁺ /R ²⁺ is 0.01 to 3.0, more preferably Ln ³⁺ /R ²⁺ is 0.03-1.0, still more preferably Ln ³⁺ /R ²⁺ is 0.05-0.8, still more preferably Ln ³⁺ /R ²⁺ is 0.07-0.5.

(9) The glass according to any one of (1) to (8), the components of which are expressed in mole percent, wherein: Ln ³⁺ /(Ba ²⁺ +Al ³⁺ ) is more than 0.02, preferably Ln ³⁺ / (Ba ²⁺ +Al ³⁺ ) is 0.02 to 2.0, more preferably Ln ³⁺ /(Ba ²⁺ +Al ³⁺ ) is 0.05 to 1.0, more preferably Ln ³⁺ /(Ba ²⁺ +Al ³⁺ ) is 0.08 to 0.8, more preferably Ln ³⁺ /(Ba ²⁺ +Al ³⁺ ) is 0.1 to 0.5.

(10) The glass according to any one of (1) to (9), the components of which are expressed in molar percentages, wherein: P ⁵⁺ /(Al ³⁺ +Ln ³⁺ ) is 5.0 to 50.0, preferably P ⁵⁺ /(Al ³⁺ +Ln ³⁺ ) is 10.0 to 35.0, more preferably P ⁵⁺ /(Al ³⁺ +Ln ³⁺ ) is 12.0 to 30.0, more preferably P ⁵⁺ /(Al ³⁺ +Ln ³⁺ ) 15.0 to 25.0.

(11) The glass according to any one of (1) to (10), the components of which are represented by mole percentage, wherein: Cu ²⁺ /Ln ³⁺ is 2.0 or more, preferably Cu ²⁺ /Ln ³⁺ is 2.0 to 40.0, more preferably Cu ²⁺ /Ln ³⁺ is 5.0-30.0, still more preferably Cu ²⁺ /Ln ³⁺ is 8.0-20.0, still more preferably Cu ²⁺ /Ln ³⁺ is 10.0-15.0.

(12) The glass according to any one of (1) to (11), the components of which are represented by mole percentage, wherein: P ⁵⁺ /R ²⁺ is 3.0 to 30.0, preferably P ⁵⁺ /R ²⁺ is 3.5 ~25.0, more preferably P ⁵⁺ /R ²⁺ is 4.0-20.0, still more preferably P ⁵⁺ /R ²⁺ is 5.0-10.0.

(13) The glass according to any one of (1) to (12), the components of which are represented by mole percentage, wherein: Ln ³⁺ /F ^- is more than 0.01, preferably Ln ³⁺ /F ^- is 0.02 to 10.0, More preferably, Ln ³⁺ /F ^- is 0.05 to 5.0, still more preferably, Ln ³⁺ /F ^- is 0.05 to 2.0, and still more preferably, Ln ³⁺ /F ^- is 0.1 to 1.0.

(14) The glass according to any one of (1) to (13), the components of which are expressed in mole percent, wherein: F ^- /Cu ²⁺ is 0.05 to 2.0, preferably F ^- /Cu ²⁺ is 0.1 to 1.5 , more preferably F ⁻ /Cu ²⁺ is 0.2 to 1.0, further preferably F ⁻ /Cu ²⁺ is 0.3 to 0.8.

(15) The glass according to any one of (1) to (14), the components of which are represented by mole percentage, wherein: P ⁵⁺ : 56-68%, preferably P ⁵⁺ : 60-65%; and/or Al ³⁺ : 0.5-8%, preferably Al ³⁺ : 1-5%; and/or Cu ²⁺ : 6-20%, preferably Cu ²⁺ : 8-15%; and/or Rn ⁺ : 7-20% %, preferably Rn ⁺ : 10-17%; and/or R ²⁺ : 3-16%, preferably R ²⁺ : 5-14%; and/or Ln ³⁺ : 0.1-6%, preferably Ln ³⁺ : 0.5-4%; and/or Zn ²⁺ : 0-5%, preferably Zn ²⁺ : 0-2%; and/or Si ⁴⁺ : 0-2%, preferably Si ⁴⁺ : 0-1%; and /or B ³⁺ : 0-2%, preferably B ³⁺ : 0-1%; and/or Zr ⁴⁺ : 0-2%, preferably Zr ⁴⁺ : 0-1%; and/or Sb ³⁺ + Sn ⁴⁺ +Ce ⁴⁺ : 0-0.5%, preferably Sb ³⁺ +Sn ⁴⁺ +Ce ⁴⁺ : 0-0.1%, the Rn ⁺ is one or more of Li ⁺ , Na ⁺ , K ⁺ R ²⁺ is one or more of Mg ²⁺ , Ca ²⁺ , Sr ²⁺ , Ba ²⁺ , Ln ³⁺ is one or more of La ³⁺ , Gd ³⁺ , Y ³⁺ kind.

(16) The glass according to any one of (1) to (15), the components of which are represented by mole percentage, wherein: Li ⁺ : 5-25%, preferably Li ⁺ : 8-20%, more preferably Li ⁺ : 10-16%; and/or Na ⁺ : 0-10%, preferably Na ⁺ : 0-5%, more preferably Na ⁺ : 0-2%; and/or K ⁺ : 0-10%, preferably K ⁺ : 0-5%, more preferably K ⁺ : 0-2%; and/or Mg ²⁺ : 0-15%, preferably Mg ²⁺ : 0.5-10%, more preferably Mg ²⁺ : 2-8%; and/or Or Ca ²⁺ : 0-10%, preferably Ca ²⁺ : 0-5%, more preferably Ca ²⁺ : 0-2%; and/or Sr ²⁺ : 0-10%, preferably Sr ²⁺ : 0-2% 5%, more preferably Sr ²⁺ : 0-2%; and/or Ba ²⁺ : 0-10%, preferably Ba ²⁺ : 0.5-8%, more preferably Ba ²⁺ : 1-6%; and/or La ³⁺ : 0-5%, preferably La ³⁺ : 0-3%, more preferably La ³⁺ : 0-2%; and/or Gd ³⁺ : 0-5%, preferably Gd ³⁺ : 0-3% %, more preferably Gd ³⁺ : 0-2%; and/or Y ³⁺ : 0-6%, preferably Y ³⁺ : 0.1-5%, more preferably Y ³⁺ : 0.5-3%.

(17) The glass according to (1) or (2), its components are represented by mole percentage, and the anion component also contains: Cl ^- +Br ^- +I ^- : 0~2%, preferably Cl ^- +Br ^- +I ^- : 0 to 1%, more preferably Cl ^- +Br ^- +I ^- : 0 to 0.5%.

(18) The glass according to any one of (1) to (17), the components of which are represented by mole percentage, wherein: O ^2- : 85-99.5%, preferably O ^2- : 88-99%, more preferably O ^2- : 91 to 98%; and/or F ^- : 0.5 to 15%, preferably F ^- : 1 to 12%, more preferably F ^- : 2 to 9%.

(19) The glass according to any one of (1) to (18), wherein the transition temperature T _g of the glass is 410° C. or lower, preferably 400° C. or lower, more preferably 390° C. or lower, and still more preferably 370 to 390° C. °C; and/or the density ρ is 3.3 g/cm ³ or less, preferably 3.2 g/cm ³ or less, more preferably 3.1 g/cm ³ or less, further preferably 3.0 g/cm ³ or less; and/or thermal expansion coefficient α _20-120°C is 110×10 ^-7 /K or less, preferably 100×10 ^-7 /K or less, more preferably 95×10 ^-7 /K or less; and/or the hardness H _v is 380kgf/mm ² or more, It is preferably 390kgf/ ^mm2 or more, more preferably 400kgf/ ^mm2 or more, and even more preferably 410kgf/ ^mm2 or more; Young's modulus E is 5500×10 ⁷ to 8500×10 ⁷ Pa, preferably 6000×10 ⁷ to 8000×10 ⁷ Pa, more preferably 6500×10 ⁷ to 7500×10 ⁷ Pa.

(20) For the glass according to any one of (1) to (19), the wavelength λ corresponding to when the transmittance reaches 50% of the spectral transmittance in the wavelength range of 500 to 700 nm for glass with a thickness of 0.5 mm or less ₅₀ is 635 nm or less, preferably 600 to 630 nm, more preferably 610 to 625 nm.

(21) The glass according to any one of (1) to (20), wherein the transmittance τ ₄₀₀ at 400 nm of the glass with a thickness of 0.5 mm or less is 80.0% or more, preferably 82.0% or more, more preferably 84.0% or more; And/or the transmittance τ ₅₀₀ at 500nm is 83.0% or more, preferably 85.0% or more, more preferably 88.0% or more; and/or the transmittance τ ₁₁₀₀ at 1100nm is 10.0% or less, preferably 7.0% or less , more preferably 5.0% or less, still more preferably 3.0% or less.

(22) The glass according to (20) or (21), which has a thickness of 0.05-0.4 mm, preferably 0.1-0.3 mm, more preferably 0.1 mm or 0.15 mm or 0.2 mm or 0.25 mm.

(23) A glass element containing the glass described in any one of (1) to (21).

(24) An optical filter comprising the glass described in any one of (1) to (21), or comprising the glass element described in (23).

(25) A device comprising the glass described in any one of (1) to (21), or comprising the glass element described in (23), or comprising the optical filter described in (24).

The beneficial effects of the invention are: through reasonable component design, the glass obtained by the invention has excellent internal quality, excellent transmission properties in the visible region and excellent absorption properties in the near-infrared region.

Detailed ways

Embodiments of the present invention will be described in detail below, but the present invention is not limited to the following embodiments, and can be implemented with appropriate changes within the scope of the purpose of the present invention. In addition, although there may be cases where descriptions are appropriately omitted regarding overlapping descriptions, the gist of the invention is not limited thereto.

[Glass]

The scope of each component (ingredient) constituting the glass of the present invention will be described below. In this specification, unless otherwise specified, the content of cationic components is represented by the molar percentage (mol%) of the cationic components in all cationic components, and the content of anionic components is represented by the molar percentage (mol%) of the anion in all cationic components. %) represents; the ratio between the cationic component contents is the ratio of the molar percentage content between the cationic component contents; the ratio between the anionic component contents is the ratio of the molar percent content between the various anionic component contents; The ratio between the content of anion and cation components is the ratio between the mole percentage content of cationic components accounting for all cationic components and the molar percentage content of anion components accounting for all anion components.

Unless otherwise indicated in a specific instance, the numerical ranges set forth herein include the upper and lower values, "above" and "below" include the endpoints, and all integers and fractions within the range, without limitation. Specific values listed when in range. The term "and/or" herein is inclusive, for example, "A and/or B" means only A, or only B, or both A and B.

It should be noted that the ionic valences of the components described below are representative values used for convenience and are not different from other ionic valences. The ion valence of each component in the glass may be other than the representative value. For example, P usually exists in the glass with an ion valence of +5, so "P ⁵⁺ " is used as a representative value in this patent, but there is a possibility of existing in other ion valence states, which is also included in this patent. within the scope of patent protection.

<Cation component>

P ⁵⁺ is an indispensable component of the glass skeleton in the present invention, which can promote the formation of glass and help to improve the near-infrared absorption performance of the glass. If the content of P ⁵⁺ is lower than 51%, the above-mentioned effects are not sufficient, and the near-infrared absorption of the glass The infrared absorption function cannot meet the design requirements; if the P ⁵⁺ content exceeds 72%, the devitrification tendency of the glass increases and the weather resistance decreases. Therefore, the content of P ⁵⁺ in the present invention is 51-72%, preferably 56-68%, more preferably 60-65%. In some embodiments, about 51%, 52%, 53%, 54%, 55%, 56%, 57%, 58%, 59%, 60%, 61%, 62%, 63%, 64% , 65%, 66%, 67%, 68%, 69%, 70%, 71%, 72% of P ⁵⁺ .

Al ³⁺ is beneficial to increase the stability of the glass, increase the strength of the glass and improve the weather resistance of the glass, but when its content exceeds 10%, the crystallization tendency of the glass increases, and the melting performance of the glass becomes poor. Therefore, the content of Al ³⁺ in the present invention is 0-10%, preferably 0.5-8%, more preferably 1-5%. In some embodiments, about 0, greater than 0, 0.01%, 0.05%, 0.1%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, 10% Al ³⁺ .

Cu ²⁺ is an essential component for the glass of the present invention to obtain near-infrared light absorption performance. If its content is lower than 5%, the near-infrared absorption performance of the glass is difficult to meet the design requirements, but if the content of Cu ²⁺ exceeds 25%, the glass’s The transmittance in the visible light region decreases, the valence state of Cu in the glass changes, it is difficult to obtain the desired light absorption performance, and the devitrification resistance of the glass decreases. Therefore, the content of Cu ²⁺ in the present invention is 5-25%, preferably 6-20%, more preferably 8-15%. In some embodiments, about 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, 10%, 10.5%, 11%, 11.5% , 12%, 12.5%, 13%, 13.5%, 14%, 14.5%, 15%, 15.5%, 16%, 16.5%, 17%, 17.5%, 18%, 18.5%, 19%, 19.5%, 20 %, 20.5%, 21%, 21.5%, 22%, 22.5%, 23%, 23.5%, 24%, 24.5%, 25% Cu ²⁺ .

In some embodiments, controlling the ratio Cu ²⁺ /Al ³⁺ between the content of Cu ²⁺ and the content of Al ³⁺ in the range of 1.0 to 15.0 can make the glass have excellent transmittance in the visible light range, Improve the near-infrared absorption performance of the glass, and the appropriate Young's modulus. Therefore, it is preferable that Cu ²⁺ /Al ³⁺ is 1.0 to 15.0, more preferably Cu ²⁺ /Al ³⁺ is 2.0 to 10.0, further preferably Cu ²⁺ /Al ³⁺ is 3.0 to 8.0, still more preferably Cu ²⁺ / Al ³⁺ is 4.0 to 7.0. In some embodiments, the value of Cu2 ⁺ /Al3 ⁺ can be 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0 , 9.5, 10.0, 10.5, 11.0, 11.5, 12.0, 12.5, 13.0, 13.5, 14.0, 14.5, 15.0.

Ln ³⁺ (Ln ³⁺ is one or more of La ³⁺ , Gd ³⁺ , Y ³⁺ ) is beneficial to improve the visible light transmittance and near-infrared absorption performance of the glass, and improve the chemical stability and hardness of the glass , if its content exceeds 8%, the anti-devitrification performance of the glass will be deteriorated. Therefore, the content of Ln ³⁺ is 8% or less, preferably 0.1-6%, more preferably 0.5-4%. In some embodiments, about 0, greater than 0, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7% , 2.8%, 2.9%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8% of Ln ³⁺ .

Compared with La ³⁺ and Gd ³⁺ in glass, Y ³⁺ is more conducive to obtaining the desired spectral characteristics of the present invention. Therefore, the content of Y ³⁺ is preferably 0-6%, more preferably 0.1-5%, and further Preferably 0.5-3%; preferably La ³⁺ content is 0-5%, more preferably 0-3%, further preferably 0-2%; preferably Gd ³⁺ content is 0-5%, more preferably 0 to 3%, more preferably 0 to 2%. In some embodiments, about 0, greater than 0, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7% , 2.8%, 2.9%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6% of Y ³⁺ . In some embodiments, about 0, greater than 0, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7% , 2.8%, 2.9%, 3%, 3.5%, 4%, 4.5%, 5% of La ³⁺ . In some embodiments, about 0, greater than 0, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7% , 2.8%, 2.9%, 3%, 3.5%, 4%, 4.5%, 5% of Gd ³⁺ .

In some embodiments, the ratio Al ³⁺ /Ln ³⁺ between the content of Al ³⁺ and the content of Ln ³⁺ is controlled above 0.2, which is beneficial for the glass to obtain a suitable Young's modulus and degree of abrasion. Therefore, Al ³⁺ /Ln ³⁺ is preferably 0.2 or more, more preferably Al ³⁺ /Ln ³⁺ is 0.2 to 20.0, and still more preferably Al ³⁺ /Ln ³⁺ is 0.5 to 15.0. Further, controlling the Al ³⁺ /Ln ³⁺ within the range of 1.0 to 10.0 is also beneficial for the glass to obtain higher hardness while preventing the transition temperature of the glass from increasing. Therefore, it is more preferable that Al ³⁺ /Ln ³⁺ is 1.0 to 10.0, and it is still more preferable that Al ³⁺ /Ln ³⁺ is 1.5 to 8.0. In some embodiments, the value of Al ³⁺ /Ln ³⁺ can be 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8 ,1.9,2.0,2.1,2.2,2.3,2.4,2.5,2.6,2.7,2.8,2.9,3.0,3.1,3.2,3.3,3.4,3.5,3.6,3.7,3.8,3.9,4.0,4.5,5.0,5.5 ,6.0,6.5,7.0,7.5,8.0,8.5,9.0,9.5,10.0,10.5,11.0,11.5,12.0,12.5,13.0,13.5,14.0,14.5,15.0,15.5,16.0,16.5,17.0,17.5,18.0 , 18.5, 19.0, 19.5, 20.0.

In some embodiments, by controlling P ⁵⁺ /(Al ³⁺ +Ln ³⁺ ) in the range of 5.0-50.0, the hardness of the glass can be improved and the density of the glass can be prevented from increasing. Therefore, P ⁵⁺ /(Al ³⁺ +Ln ³⁺ ) is preferably 5.0 to 50.0, more preferably P ⁵⁺ /(Al ³⁺ +Ln ³⁺ ) is 10.0 to 35.0. Further, controlling P ⁵⁺ /(Al ³⁺ +Ln ³⁺ ) within the range of 12.0-30.0 can further increase the visible light transmittance of the glass. Therefore, it is more preferable that P ⁵⁺ /(Al ³⁺ +Ln ³⁺ ) is 12.0 to 30.0, and it is still more preferable that P ⁵⁺ /(Al ³⁺ +Ln ^{3 +} ) is 15.0 to 25.0. In some embodiments, the value of P ⁵⁺ /(Al ³⁺ +Ln ³⁺ ) may be 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 11.0, 12.0, 13.0, 14.0, 15.0, 16.0, 17.0, 18.0 . , 44.0, 45.0, 46.0, 47.0, 48.0, 49.0, 50.0.

In some embodiments, controlling Cu ²⁺ /Ln ³⁺ to be above 2.0 is beneficial to improve the near-infrared absorption performance of the glass. Therefore, it is preferable that Cu ²⁺ /Ln ³⁺ is 2.0 or more, and it is more preferable that Cu ²⁺ /Ln ³⁺ is 2.0 to 40.0. Furthermore, when Cu ²⁺ /Ln ^{3 +} is controlled within the range of 5.0-30.0, it is also beneficial to increase the hardness of the glass and reduce the transition temperature. Therefore, it is more preferable that Cu ²⁺ /Ln ³⁺ is 5.0-30.0, it is still more preferable that Cu ²⁺ /Ln ³⁺ is 8.0-20.0, and it is still more preferable that Cu ²⁺ /Ln ³⁺ is 10.0-15.0. In some embodiments, the value of Cu ²⁺ /Ln ³⁺ may be 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 11.0, 12.0, 13.0, 14.0, 15.0, 16.0, 17.0, 18.0 .

Rn ⁺ (Rn ⁺ is one or more of Li ⁺ , Na ⁺ , K ⁺ ) can reduce the melting temperature and viscosity of the glass, and can promote more Cu to exist in the state of Cu ²⁺ , but with the Rn ⁺ increases, the chemical stability of the glass becomes worse. In the present invention, the above properties are obtained by containing more than 5% Rn ⁺ , but when the content of Rn ⁺ exceeds 25%, the devitrification resistance of the glass decreases, the formability of the glass deteriorates, and the thermal expansion coefficient increases. Therefore, the content of Rn ⁺ in the present invention is 5-25%, preferably 7-20%, more preferably 10-17%. In some embodiments, about 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, 10%, 10.5%, 11%, 11.5% , 12%, 12.5%, 13%, 13.5%, 14%, 14.5%, 15%, 15.5%, 16%, 16.5%, 17%, 17.5%, 18%, 18.5%, 19%, 19.5%, 20 %, 20.5%, 21%, 21.5%, 22%, 22.5%, 23%, 23.5%, 24%, 24.5%, 25% of Rn ⁺ .

Li ⁺ can reduce the melting temperature and viscosity of the glass, improve the visible light transmittance of the glass, and at the same time contribute more to the chemical stability than Na ⁺ and K ⁺ , preferably containing more than 5% Li ⁺ in the present invention. But when the Li ⁺ content exceeds 25%, the devitrification resistance and formability of the glass are reduced. Therefore ^, the lower limit of the Li content is preferably 5%, the lower limit is more preferably 8%, and the lower limit is still more preferably 10%, ^and the upper limit of the Li content is preferably 25%, more preferably 20%, and even more preferably 16%. In some embodiments, about 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, 10%, 10.5%, 11%, 11.5% , 12%, 12.5%, 13%, 13.5%, 14%, 14.5%, 15%, 15.5%, 16%, 16.5%, 17%, 17.5%, 18%, 18.5%, 19%, 19.5%, 20 %, 20.5%, 21%, 21.5%, 22%, 22.5%, 23%, 23.5%, 24%, 24.5%, 25% of Li ⁺ .

Na ⁺ is a component that improves glass meltability. In the present invention, by making the content of Na ⁺ 10% or less, the chemical stability of the glass can be improved, and degradation of weather resistance and workability can be prevented. The Na ⁺ content is preferably 5% or less, and the Na ⁺ content is more preferably 2% or less. In some embodiments, about 0, greater than 0, 0.01%, 0.05%, 0.1%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, 10% Na ⁺ .

K ⁺ can increase the transmittance of glass in the visible light region, and when its content exceeds 10%, the stability of glass decreases. Therefore, the content of K ⁺ is 10% or less, preferably the content of K ⁺ is 5% or less, and more preferably the content of K ⁺ is 2% or less. In some embodiments, about 0, greater than 0, 0.01%, 0.05%, 0.1%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, 10% K ⁺ .

R ²⁺ (R ²⁺ is one or more of Mg ²⁺ , Ca ²⁺ , Sr ²⁺ , Ba ²⁺ ) can be used to reduce the melting temperature and thermal expansion coefficient of glass, improve the glass-forming stability and Strength, but when the R ²⁺ content exceeds 18%, the devitrification resistance of the glass decreases. The content of R ²⁺ in the present invention is 1-18%, preferably 3-16%, more preferably 5-14%. In some embodiments, about 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5% , 8%, 8.5%, 9%, 9.5%, 10%, 10.5%, 11%, 11.5%, 12%, 12.5%, 13%, 13.5%, 14%, 14.5%, 15%, 15.5%, 16 %, 16.5%, 17%, 17.5%, 18% of R ²⁺ .

In some embodiments, controlling Ln ³⁺ /R ²⁺ to be above 0.01 can optimize the devitrification resistance of the glass, which is beneficial to reduce the thermal expansion coefficient of the glass. Therefore, it is preferable that Ln ³⁺ /R ²⁺ is 0.01 or more, and it is more preferable that Ln ³⁺ /R ²⁺ is 0.01 to 3.0. Further, by controlling Ln ³⁺ /R ²⁺ within the range of 0.03-1.0, it is also beneficial to improve the near-infrared absorption performance of the glass. Therefore, it is more preferable that Ln ³⁺ /R ²⁺ is 0.03-1.0, it is still more preferable that Ln ³⁺ /R ²⁺ is 0.05-0.8, and it is still more preferable that Ln ³⁺ /R ²⁺ is ^0.07-0.5 . In some embodiments, the value of Ln ³⁺ /R ²⁺ can be 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 0.1, 0.11, 0.12, 0.13, 0.14, 0.15, 0.16, 0.17 . ,0.95,1.0,1.1,1.2,1.3,1.4,1.5,1.6,1.7,1.8,1.9,2.0,2.1,2.2,2.3,2.4,2.5,2.6,2.7,2.8,2.9,3.0.

In some embodiments, by controlling P ⁵⁺ /R ²⁺ in the range of 3.0-30.0, it is beneficial to improve the chemical stability of the glass and reduce the density and thermal expansion coefficient of the glass. Therefore, preferably P ⁵⁺ /R ²⁺ is 3.0-30.0, more preferably P ⁵⁺ /R ²⁺ is 3.5-25.0, still more preferably P ⁵⁺ /R ²⁺ is 4.0-20.0, still more preferably P ⁵⁺ / R ²⁺ is 5.0 to 10.0. In some embodiments, the value of P ⁵⁺ /R ²⁺ can be 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0, 10.5, 11.0 . , 24.0, 24.5, 25.0, 25.5, 26.0, 26.5, 27.0, 27.5, 28.0, 28.5, 29.0, 29.5, 30.0.

Mg ²⁺ can reduce the melting temperature of glass and improve the processability of glass. If its content exceeds 15%, the anti-devitrification performance of glass will decrease. Therefore, the content of Mg ²⁺ is less than 15%, and the content of Mg ²⁺ is preferably 0.5% ~10%, more preferably the content of Mg ²⁺ is 2~8%. In some embodiments, about 0, greater than 0, 0.1%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, 10%, 10.5%, 11%, 11.5%, 12%, 12.5%, 13%, 13.5%, 14% , 14.5%, 15% Mg ²⁺ .

In some embodiments, controlling the value of Li ⁺ /(Mg ²⁺ +Al ³⁺ ) in the range of 0.4 to 10.0 can make the glass have excellent transmittance in the visible light range, improve the near-infrared absorption of the glass, and prevent the glass from Density and coefficient of thermal expansion rise. Therefore, Li ⁺ /(Mg ²⁺ +Al ³⁺ ) is preferably 0.4 to 10.0, more preferably Li ⁺ /(Mg ²⁺ +Al ³⁺ ) is 0.6 to 7.0, further preferably Li ⁺ /(Mg ²⁺ +Al ³⁺ ) is 1.0 to 5.0, more preferably Li ⁺ /(Mg ²⁺ +Al ³⁺ ) is 1.2 to 3.0. In some embodiments, the value of Li ⁺ /(Mg ²⁺ +Al ³⁺ ) can be 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 4.0, 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7, 4.8, 4.9, 5.0, 5.3, 5.5, 5.7, 6.0, 6.3, 6.5, 6.7, 7.0, 7.3, 7.5, 7.7, 8.0, 8.3, 8.5, 8.7, 9.0, 9.3, 9.5, 9.7, 10.0.

In some embodiments, by controlling the value of (Cu ²⁺ +Mg ²⁺ )/(Li ⁺⁺ +Al ³⁺ ) in the range of 0.3 to 6.0, the glass can be improved while having a suitable Young's modulus. The hardness of the glass. Therefore, preferably (Cu ²⁺ +Mg ²⁺ )/(Li ⁺ +Al ³⁺ ) is 0.3 to 6.0, more preferably (Cu ²⁺ +Mg ²⁺ )/(Li ⁺ +Al ³⁺ ) is 0.5 to 5.0 , more preferably (Cu ²⁺ +Mg ²⁺ )/(Li ⁺ +Al ³⁺ ) is 0.7 to 3.0, more preferably (Cu ²⁺ +Mg ²⁺ )/(Li ⁺⁺ +Al ³⁺ ) is 0.8 to 2.0. In some embodiments, the value of (Cu ²⁺ +Mg ²⁺ )/(Li ⁺⁺ +Al ³⁺ ) can be 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 4.0, 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7, 4.8, 4.9, 5.0, 5.1, 5.2, 5.3, 5.4, 5.5, 5.6, 5.7, 5.8, 5.9, 6.0.

By containing 10% or less of Ca ²⁺ , the glass can reduce the high-temperature viscosity while preventing a decrease in devitrification resistance. The Ca ²⁺ content is preferably 5% or less, more preferably 2% or less. In some embodiments, about 0, greater than 0, 0.01%, 0.05%, 0.1%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, 10% Ca2 ⁺ .

By containing 10% or less of Sr ²⁺ , the chemical stability and devitrification resistance of the glass can be prevented from being lowered, and the content of Sr ²⁺ is preferably 5% or less, more preferably 2% or less. In some embodiments, about 0, greater than 0, 0.01%, 0.05%, 0.1%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, 10% Sr ²⁺ .

Ba ²⁺ can increase the transmittance of the glass in the visible light region, and improve the glass-forming stability and strength of the glass. If its content exceeds 10%, the density of the glass will increase. In some embodiments of the present invention, by making the content of Ba ²⁺ more than 0.5%, the chemical stability of the glass can be improved and the thermal expansion coefficient of the glass can be reduced. Therefore, the content of Ba ²⁺ is 10% or less, preferably the content of Ba ²⁺ is 0.5-8%, more preferably the content of Ba ²⁺ is 1-6%. In some embodiments, about 0, greater than 0, 0.01%, 0.05%, 0.1%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, 10% Ba ²⁺ .

In some embodiments, by setting Ln ³⁺ /(Ba ²⁺ +Al ³⁺ ) at 0.02 or more, it is beneficial to reduce the thermal expansion coefficient of the glass while preventing the transition temperature from rising. Therefore, preferably Ln ³⁺ /(Ba ²⁺ +Al ³⁺ ) is 0.02 or more, more preferably Ln ³⁺ /(Ba ²⁺ +Al ³⁺ ) is 0.02 to 2.0, still more preferably Ln ³⁺ /(Ba ²⁺ +Al ³⁺ ) is 0.05 to 1.0. Further, by controlling Ln ³⁺ /(Ba ²⁺ +Al ³⁺ ) in the range of 0.08-0.8, it is also beneficial to optimize the hardness of the glass. Therefore, it is more preferable that Ln ³⁺ /(Ba ²⁺ +Al ³⁺ ) is 0.08 to 0.8, and it is still more preferable that Ln ³⁺ /(Ba ²⁺ +Al ³⁺ ) is 0.1 to 0.5.

B ³⁺ can lower the melting temperature of glass, and when its content exceeds 5%, the near-infrared light absorption properties will decrease. Therefore, the B ^{3 +} content is 0 to 5%, preferably 0 to 2%, more preferably 0 to 1%, and even more preferably does not contain B ³⁺ . In some embodiments, about 0, greater than 0, 0.01%, 0.05%, 0.1%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5% B ³⁺ .

Si ⁴⁺ can promote the formation of glass and improve the chemical stability of the glass. When its content exceeds 5%, the melting property of the glass will deteriorate, and unmelted impurities will easily form in the glass, and the near-infrared light absorption properties of the glass will easily decrease. . Therefore, the content of Si ⁴⁺ is 0 to 5%, preferably 0 to 2%, more preferably 0 to 1%, and further preferably does not contain Si ⁴⁺ . In some embodiments, about 0, greater than 0, 0.01%, 0.05%, 0.1%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5% Si ⁴⁺ .

Zn ²⁺ can lower the transition temperature of the glass and improve the thermal stability of the glass. When its content exceeds 10%, the resistance to devitrification of the glass will decrease. Therefore, the Zn ²⁺ content is limited to less than 10%, preferably less than 5%, more preferably 2% or less. In some embodiments, it is further preferable not to contain Zn ²⁺ . In some embodiments, about 0, greater than 0, 0.01%, 0.05%, 0.1%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5% Zn ²⁺ .

Zr ⁴⁺ can improve the chemical stability of the glass, but if its content exceeds 5%, the melting performance of the glass will be significantly reduced, and the anti-devitrification performance will be reduced. Therefore, the Zr ⁴⁺ content is limited to 0 to 5%, preferably 0 to 2%, more preferably 0 to 1%, and even more preferably does not contain Zr ⁴⁺ . In some embodiments, about 0, greater than 0, 0.01%, 0.05%, 0.1%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5% Zr ⁴⁺ .

One or more components of Sb ³⁺ , Sn ⁴⁺ , Ce ⁴⁺ can be used as a clarifier to improve the clarification effect of the glass and improve the bubble degree of the glass. Sb ³⁺ , Sn ⁴⁺ , Ce ⁴⁺ The individual or total content is 0 to 1%, preferably 0 to 0.5%, more preferably 0 to 0.1%. In some embodiments, about 0, greater than 0, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1% of Sb ³⁺ and/or Sn ⁴⁺ and/or Ce ⁴⁺ .

<Anion component>

The anionic component of the glass of the present invention mainly contains O ^2- and F ^- , in order to make the glass of the present invention have excellent stability and devitrification resistance ^{, the total content of O 2- and F - is 98 %} or more, preferably 99% or more, more preferably 99.5% or more. In some embodiments ^, O ^2- +F- can be 98%, 98.1%, 98.2%, 98.3%, 98.4%, 98.5%, 98.6%, 98.7%, 98.8%, 98.9%, 99%, 99.1%, 99.2%, 99.3%, 99.4%, 99.5%, 99.6%, 99.7%, 99.8%, 99.9%, 100%.

O ^2- is an important anion component in the glass of the present invention, which can stabilize the network structure and form a stable glass, and can also ensure that the Cu ions in the glass exist in the form of Cu ²⁺ , thereby ensuring that the glass absorbs light in the near-infrared region characteristic. If the content of O ^2- is too small, it is difficult to form a stable glass, and Cu ²⁺ is easily reduced to Cu ⁺ , and it is difficult to achieve the effect of light absorption in the near-infrared region; but too much content of O ^2- will make the glass The high melting temperature leads to a significant decrease in the light transmittance in the visible light region. Therefore, the O ² - content is limited to 85 to 99.5%, preferably 88 to 99%, and more preferably 91 to 98%. In some embodiments, about 85%, 85.5%, 86%, 86.5%, 87%, 87.5%, 88%, 88.5%, 89%, 89.5%, 90%, 90.5%, 91%, 91.5% , 92%, 92.5%, 93%, 93.5%, 94%, 94.5%, 95%, 95.5%, 96%, 96.5%, 97%, 97.5%, 98%, 98.5%, 99%, 99.5% of O ^2- .

F ^- It can lower the melting temperature of the glass, increase the transmittance in the visible light region of the glass, reduce the viscosity of the glass, and an appropriate amount is beneficial to improve the crystallization resistance of the glass. If the F ^- content exceeds 15%, the stability of the glass will decrease, and the glass will be volatile during the melting process, causing pollution to the environment, and the glass will easily form streaks. Therefore, the content of F ^- is limited to 0.5-15%, preferably 1-12%, more preferably 2-9%. In some embodiments, about 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7% , 7.5%, 8%, 8.5%, 9%, 9.5%, 10%, 10.5%, 11%, 11.5%, 12%, 12.5%, 13%, 13.5%, 14%, 14.5%, 15% of F ^- .

In some embodiments, by controlling Ln ³⁺ /F ^- to be above 0.01, the near-infrared absorption performance of the glass can be improved while preventing the glass transition temperature from increasing. Therefore, Ln ³⁺ /F ^- is preferably 0.01 or more, more preferably Ln ³⁺ /F ^- is 0.02 to 10.0, and even more preferably Ln ³⁺ /F ^- is 0.05 to 5.0. Further, by controlling Ln ³⁺ /F ^- in the range of 0.05-2.0, the glass can also obtain a suitable Young's modulus. Therefore, it is more preferable that Ln ³⁺ /F ^- is 0.05 to 2.0, and it is still more preferable that Ln ³⁺ /F ^- is 0.1 to 1.0. In some embodiments, the value of Ln ³⁺ /F ^- can be 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 0.1, 0.11, 0.12, 0.13, 0.14, 0.15, 0.16, 0.17, 0.18,0.19,0.2,0.21,0.22,0.23,0.24,0.25,0.26,0.27,0.28,0.29,0.3,0.35,0.4,0.45,0.5,0.55,0.6,0.65,0.7,0.75,0.8,0.85,0.9, 0.95, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0.

In some embodiments, by controlling F ^- /Cu ²⁺ within the range of 0.05-2.0, the glass can obtain a suitable Young's modulus and a low thermal expansion coefficient. Therefore, preferably F ^- /Cu ²⁺ is 0.05-2.0, more preferably F ^- /Cu ²⁺ is 0.1-1.5, still more preferably F ^- /Cu ²⁺ is 0.2-1.0, still more preferably F ^- /Cu ²⁺ is 0.3～0.8. In some embodiments, the value of F ⁻ /Cu ²⁺ can be 0.05, 0.06, 0.07, 0.08, 0.09, 0.1, 0.11, 0.12, 0.13, 0.14, 0.15, 0.16, 0.17, 0.18, 0.19, 0.2, 0.21, 0.22, 0.23, 0.24, 0.25, 0.26, 0.27, 0.28, 0.29, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 0.95, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0

One or more of Cl ^- , Br ^- , I ^- can be used as a clarifier to improve the clarification effect of the glass and improve the bubble degree of the glass. The content of Cl ^- , Br ^- , I ^- alone or in total is 0 -2%, preferably 0-1%, more preferably 0-0.5%. In some embodiments, about 0, greater than 0, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2% of Cl ⁻ and/or Br ⁻ and/or I ⁻ .

<Ingredients not contained>

Even if components such as V, Cr, Mn, Fe, Co, Ni, Ag and Mo are contained in a small amount alone or in combination, the spectral transmittance of the glass will be disturbed, which is not conducive to forming the glass of the present invention, so it is preferred Does not contain the above components.

As, Pb, Th, Cd, Tl, Os, Be, and Se components tend to be controlled and used as harmful chemical substances in recent years. Environmental protection measures are required. Therefore, when emphasis is placed on the influence on the environment, it is preferable not to contain them substantially except for unavoidable mixing. As a result, the glass becomes practically free of environmentally polluting substances. Therefore, the glass of the present invention can be manufactured, processed, and discarded without taking special environmental measures.

The "does not contain" and "0%" described herein means that the component is not intentionally added to the glass of the present invention as a raw material; but as a raw material and/or equipment for producing glass, there will be some impurities or impurities that are not intentionally added. Components may be contained in a small or trace amount in the final glass, and this situation is also within the protection scope of the patent of the present invention.

[Manufacturing method]

The manufacturing method of the glass of the present invention is as follows: the glass of the present invention is produced using conventional raw materials and conventional processes, using carbonates, nitrates, phosphates, metaphosphates, sulfates, hydroxides, oxides, fluorides, etc. as raw materials After batching according to the conventional method, put the prepared charge into a melting furnace at 700-1000°C for melting, and after clarification, stirring and homogenization, a homogeneous molten glass without bubbles and undissolved substances is obtained. This molten glass is cast in a mold and annealed. Those skilled in the art can properly select raw materials, process methods and process parameters according to actual needs.

The glass of the present invention can also be shaped by well-known methods. In some embodiments, the glasses described herein can be manufactured into shaped bodies, including but not limited to sheets, by a variety of processes including, but not limited to, slot drawing, float, rolling and other sheet forming processes known in the art. Alternatively, the glass may be formed by float or roll methods as are known in the art.

The glass of the present invention can be manufactured into a sheet glass molded body by methods such as grinding or buffing, but the method of manufacturing the glass molded body is not limited to these methods.

The glasses and glass forming bodies described herein can have any thickness that is reasonably useful.

Next, the performance of the glass of the present invention will be described.

<transition temperature>

The transition temperature (T _g ) of the glass is tested according to the method specified in GB/T7962.16-2010.

In some embodiments, the transition temperature (T _g ) of the glass of the present invention is 410°C or lower, preferably 400°C or lower, more preferably 390°C or lower, and even more preferably 370-390°C.

<density>

The density (ρ) of the glass is tested according to the method specified in GB/T7962.20-2010.

In some embodiments, the density (ρ) of the glass of the present invention is 3.3 g/cm ³ or less, preferably 3.2 g/cm ³ or less, more preferably 3.1 g/cm ³ or less, even more preferably 3.0 g/cm ³ the following.

<Thermal expansion coefficient>

The thermal expansion coefficient (α _20-120 ℃) of the glass is tested according to the method specified in GB/T7962.16-2010.

In some embodiments, the thermal expansion coefficient (α _20-120°C ) of the glass of the present invention is 110×10 ^-7 /K or less, preferably 100×10 ^-7 /K or less, more preferably 95×10 ^-7 /K Below K.

<hardness>

The hardness (H _v ) of the glass is tested by the following method: the load (N) when a diamond square cone indenter with an angle of 136° is pressed into a pyramid-shaped depression on the test surface is calculated by dividing it by the length of the depression The value of the surface area (mm ² ) is expressed. The test load was set to 100 (N), and the holding time was set to 15 (seconds).

In some embodiments, the glass hardness (H _v ) of the present invention is 380 kgf/mm ² or more, preferably 390 kgf/mm ² or more, more preferably 400 kgf/mm ² or more, still more preferably 410 kgf/mm ² or more.

<Young's modulus>

The Young's modulus (E) of the glass is measured by ultrasonic wave velocity and transverse wave velocity, and then calculated according to the following formula.

Among them, in the formula:

E is Young's modulus, Pa;

G is the shear modulus, Pa;

V _T is the shear wave velocity, m/s;

V _S is the longitudinal wave velocity, m/s;

ρ is the glass density, g/cm ³ .

In some embodiments, the lower limit of Young's modulus (E) of the glass of the present invention is 5500×10 ⁷ /Pa, preferably 6000×10 ⁷ /Pa, more preferably 6500×10 ⁷ /Pa, Young The upper limit of the modulus (E) is 8500×10 ⁷ /Pa, preferably 8000×10 ⁷ /Pa, more preferably 7500×10 ⁷ /Pa.

<spectral transmittance>

The spectral transmittance of the glass of the present invention refers to the value obtained in the described manner by a spectrophotometer: assuming that the glass sample has two planes parallel to each other and optically polished, the light is vertically incident from one parallel plane, and The intensity of the outgoing light divided by the intensity of the incident light is the transmittance, which is also called the external transmittance.

In some embodiments, when the glass thickness is 0.5 mm or less, the spectral transmittance has the characteristics shown below:

The spectral transmittance (τ ₄₀₀ ) at a wavelength of 400 nm is 80.0% or more, preferably 82.0% or more, more preferably 84.0% or more.

In some embodiments, τ ₄₀₀ can be 80.0%, 80.1%, 80.2%, 80.3%, 80.4%, 80.5%, 80.6%, 80.7%, 80.8%, 80.9%, 81.0%, 81.1%, 81.2%, 81.3% %, 81.4%, 81.5%, 81.6%, 81.7%, 81.8%, 81.9%, 82.0%, 82.1%, 82.2%, 82.3%, 82.4%, 82.5%, 82.6%, 82.7%, 82.8%, 82.9%, 83.0%, 83.1%, 83.2%, 83.3%, 83.4%, 83.5%, 83.6%, 83.7%, 83.8%, 83.9%, 84.0%, 84.1%, 84.2%, 84.3%, 84.4%, 84.5%, 84.6% , 84.7%, 84.8%, 84.9%, 85.0%, 85.1%, 85.2%, 85.3%, 85.4%, 85.5%, 85.6%, 85.7%, 85.8%, 85.9%, 86.0%, 86.1%, 86.2%, 86.3 %, 86.4%, 86.5%, 86.6%, 86.7%, 86.8%, 86.9%, 87.0%, 87.1%, 87.2%, 87.3%, 87.4%, 87.5%, 87.6%, 87.7%, 87.8%, 87.9%, 88.0%, 88.1%, 88.2%, 88.3%, 88.4%, 88.5%, 88.6%, 88.7%, 88.8%, 88.9%, 89.0%, 89.5%, 90.0%, 90.5%, 91.0%, 91.5%, 92.0% .

The spectral transmittance (τ ₅₀₀ ) at a wavelength of 500 nm is 83.0% or more, preferably 85.0% or more, more preferably 88.0% or more

In some embodiments, τ ₅₀₀ may be 83.0%, 83.1%, 83.2%, 83.3%, 83.4%, 83.5%, 83.6%, 83.7%, 83.8%, 83.9%, 84.0%, 84.1%, 84.2%, 84.3% %, 84.4%, 84.5%, 84.6%, 84.7%, 84.8%, 84.9%, 85.0%, 85.1%, 85.2%, 85.3%, 85.4%, 85.5%, 85.6%, 85.7%, 85.8%, 85.9%, 86.0%, 86.1%, 86.2%, 86.3%, 86.4%, 86.5%, 86.6%, 86.7%, 86.8%, 86.9%, 87.0%, 87.1%, 87.2%, 87.3%, 87.4%, 87.5%, 87.6% , 87.7%, 87.8%, 87.9%, 88.0%, 88.1%, 88.2%, 88.3%, 88.4%, 88.5%, 88.6%, 88.7%, 88.8%, 88.9%, 89.0%, 89.1%, 89.2%, 89.3 %, 89.4%, 89.5%, 89.6%, 89.7%, 89.8%, 89.9%, 90.0%, 90.1%, 90.2%, 90.3%, 90.4%, 90.5%, 90.6%, 90.7%, 90.8%, 90.9%, 91.0%, 91.1%, 91.2%, 91.3%, 91.4%, 91.5%, 91.6%, 91.7%, 91.8%, 91.9%, 92.0%, 92.5%, 93.0%, 93.5%, 94.0%, 94.5%, 95.0% .

The spectral transmittance (τ ₁₁₀₀ ) at a wavelength of 1100 nm is 10.0% or less, preferably 7.0% or less, more preferably 5.0% or less, still more preferably 3.0% or less.

In some embodiments, τ ₁₁₀₀ can be 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1.0%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8 %, 1.9%, 2.0%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3.0%, 3.5%, 4.0%, 4.5%, 5.0%, 5.5%, 6.0%, 6.5%, 7.0%, 7.5%, 8.0%, 8.5%, 9.0%, 9.5%, 10.0%.

In some embodiments, when the thickness of the glass is less than 0.5mm, among the spectral transmittance in the wavelength range of 500-700nm, the corresponding wavelength (λ ₅₀ ) when the transmittance reaches 50% is less than 635nm, preferably 600nm ~630nm, more preferably 610~625nm.

In some embodiments, _λ50 is 600nm, 601nm, 602nm, 603nm, 604nm, 605nm, 606nm, 607nm, 608nm, 609nm, 610nm, 611nm, 612nm, 613nm, 614nm, 615nm, 616nm, 617nm, 618nm, 619nm, 620nm , 621nm, 622nm, 623nm, 624nm, 625nm, 626nm, 627nm, 628nm, 629nm, 630nm, 631nm, 632nm, 633nm, 634nm, 635nm.

In the above spectral transmittance test, the thickness of the glass is preferably 0.05-0.4 mm, more preferably 0.1-0.3 mm, and even more preferably 0.1 mm or 0.15 mm or 0.2 mm or 0.25 mm.

[glass element]

The glass element related to the present invention contains the above-mentioned glass, and can be, for example, a thin plate-shaped glass element or lens used in a near-infrared light absorption filter, and is suitable for color correction of a solid-state imaging element. various excellent properties. Moreover, the thickness of the glass element (the distance between the incident surface and the outgoing surface of the transmitted light) is determined by the transmittance characteristics of the element, and is preferably 0.05 to 0.4 mm, more preferably 0.1 to 0.3 mm, and even more preferably 0.1 mm or 0.15mm or 0.2mm or 0.25mm, in the spectral transmittance in the wavelength range of 500-700nm, the corresponding wavelength (λ ₅₀ ) when the transmittance reaches 50% is 635nm or less, preferably 600-630nm, more preferably 610~625nm. In order to obtain such a glass element, the composition of the glass is adjusted, and it is processed into an element having the thickness of the above-mentioned spectral characteristics.

[filter]

The optical filter related to the present invention is a near-infrared filter, which contains the above-mentioned glass or contains the above-mentioned glass element, and is equipped with a near-infrared light-absorbing element made of near-infrared light-absorbing glass whose two sides are optically polished. The element imparts the color correction function of the filter while also possessing various excellent properties of the glass mentioned above.

[equipment]

The glass of the present invention, or the glass element, or the optical filter can be produced by well-known methods such as portable communication equipment (such as mobile phones), smart wearable equipment, photographic equipment, camera equipment, display equipment and monitoring equipment.

Example

<Glass Example>

In order to further clearly illustrate and illustrate the technical solution of the present invention, the following non-limiting examples are provided.

In this example, glass having the compositions shown in Tables 1 to 3 was obtained by using the above-mentioned glass manufacturing method. In addition, the properties of each glass were measured by the test method described in the present invention, and the measurement results are shown in Tables 1 to 3.

Table 1.

Table 2.

table 3.

The glass made in the examples described in the above Tables 1 to 3 was processed into a glass sheet with a thickness of 0.2 mm, and the spectral transmittance of the glass in each example was measured according to the test method described above. The results are shown in Table 4 ~ Table 6.

Table 4.

Example 1# 2# 3# 4# 5# 6# 7# 8# τ₄₀₀(%) 84.8 85.0 85.7 85.5 85.6 86.3 86.1 85.5 τ₅₀₀(%) 87.8 88.0 88.8 88.6 88.4 89.1 88.9 88.5 τ₁₁₀₀(%) 2.2 2.1 2.0 2.1 1.9 1.8 1.7 2.0 λ₅₀(nm) 628 627 626 627 625 622 624 628

table 5.

Example 9# 10# 11# 12# 13# 14# 15# 16# τ₄₀₀(%) 86.7 86.5 86.2 87.0 86.3 85.2 85.7 86.0 τ₅₀₀(%) 89.5 89.3 89.0 90.2 89.1 88.3 88.6 88.3 τ₁₁₀₀(%) 1.5 1.3 1.6 1.2 1.7 2.1 1.8 2.1 λ₅₀(nm) 620 618 624 618 625 628 627 626

Table 6.

Example 17# 18# 19# 20# twenty one# twenty two# twenty three# twenty four# τ₄₀₀(%) 85.9 86.0 86.8 87.1 85.8 86.2 86.1 86.3 τ₅₀₀(%) 88.7 88.8 89.8 90.3 88.9 88.9 89.1 89.3 τ₁₁₀₀(%) 2.0 1.6 1.4 1.2 2.0 1.7 1.9 1.8 λ₅₀(nm) 625 625 619 620 625 623 624 625

<Example of glass element>

The glass of the above-mentioned Examples 1 to 24# is made into a glass element by a method known in the art, for example, a thin plate-shaped glass element or lens used in a near-infrared light absorption filter, which is suitable for a solid-state imaging element It has various excellent properties of the above-mentioned glasses.

<Example of filter>

The glasses and/or glass elements of the above-mentioned Examples 1-24# are made into optical filters by methods known in the art. The optical filters of the present invention have a color correction function and also have various excellent properties of the above-mentioned glasses.

<device embodiment>

The glass and/or glass elements and/or optical filters of the present invention can be made into devices such as portable communication devices (such as mobile phones), smart wearable devices, photographic devices, camera devices, display devices, and monitoring devices by well-known methods. It can also be used, for example, in imaging devices, sensors, microscopes, medical technology, digital projection, optical communication technology/information transmission, or in camera devices and devices in the automotive sector.

Claims (84)

1. A glass, characterized in that the cationic component comprises, expressed in mole percent: p is ⁵⁺ ：51～72％；Al ³⁺ ：0～10％；Cu ²⁺ ：5～25％；Rn ⁺ ：5～25％；R ²⁺ ：1～18％；Ln ³⁺ ：0.1～8％；Ln ³⁺ /F ^- At least 0.01, the Rn ⁺ Is Li ⁺ 、Na ⁺ 、K ⁺ One or more of, R ²⁺ Is Mg ²⁺ 、Ca ²⁺ 、Sr ²⁺ 、Ba ²⁺ One or more of, ln ³⁺ Is La ³⁺ 、Gd ³⁺ 、Y ^{3 +} One or more of;

the anionic component contains O ^2- And F ^- ，O ^2- And F ^- Total content of (A) to (B) ^2- +F ^- More than 98 percent.

2. The glass according to claim 1, wherein the cationic component further comprises, in mole percent: zn ^{2 +} :0 to 10 percent; and/or Si ⁴⁺ :0 to 5 percent; and/or B ³⁺ :0 to 5 percent; and/or Zr ⁴⁺ :0 to 5 percent; and/or Sb ³⁺ +Sn ⁴⁺ +Ce ⁴⁺ ：0～1％。

3. Glass, characterized in that the cationic component, expressed in mole percentage, is: p is ⁵⁺ ：51～72％；Al ³⁺ ：0～10％；Cu ²⁺ ：5～25％；Rn ⁺ ：5～25％；R ²⁺ ：1～18％；Ln ³⁺ ：0.1～8％；Zn ²⁺ ：0～10％；Si ⁴⁺ ：0～5％；B ³⁺ ：0～5％；Zr ⁴⁺ ：0～5％；Sb ³⁺ +Sn ⁴⁺ +Ce ⁴⁺ ：0～1％；Ln ³⁺ /F ^- 0.01 or more, the Rn ⁺ Is Li ⁺ 、Na ⁺ 、K ⁺ One or more of, R ²⁺ Is Mg ²⁺ 、Ca ²⁺ 、Sr ²⁺ 、Ba ²⁺ One or more of, ln ³⁺ Is La ³⁺ 、Gd ³⁺ 、Y ³⁺ One or more of (a), the anionic component is O ^2- And F ^- 。

4. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: al (aluminum) ³⁺ /Ln ³⁺ Is 0.2 or more.

5. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: al (aluminum) ³⁺ /Ln ³⁺ Is 0.2 to 20.0.

6. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: al (Al) ³⁺ /Ln ³⁺ 0.5 to 15.0.

7. Glass according to any one of claims 1 to 3, characterised in that its composition is expressed in mole percentages in which: al (Al) ³⁺ /Ln ³⁺ Is 1.0 to 10.0.

8. Glass according to any one of claims 1 to 3, characterised in that its composition is expressed in mole percentages in which: al (Al) ³⁺ /Ln ³⁺ Is 1.5 to 8.0.

9. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: li ⁺ /(Mg ²⁺ +Al ³⁺ ) 0.4 to 10.0.

10. Glass according to any one of claims 1 to 3, characterised in that its composition is expressed in mole percentages in which: li ⁺ /(Mg ²⁺ +Al ³⁺ ) 0.6 to 7.0.

11. Glass according to any one of claims 1 to 3, characterised in that its components are present in molar amountsExpressed in mole percent, wherein: li ⁺ /(Mg ²⁺ +Al ³⁺ ) Is 1.0 to 5.0.

12. Glass according to any one of claims 1 to 3, characterised in that its composition is expressed in mole percentages in which: li ⁺ /(Mg ²⁺ +Al ³⁺ ) Is 1.2 to 3.0.

13. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: cu ²⁺ /Al ³⁺ Is 1.0 to 15.0.

14. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: cu (copper) ²⁺ /Al ³⁺ Is 2.0 to 10.0.

15. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: cu ²⁺ /Al ³⁺ Is 3.0 to 8.0.

16. Glass according to any one of claims 1 to 3, characterised in that its composition is expressed in mole percentages in which: cu (copper) ²⁺ /Al ³⁺ Is 4.0 to 7.0.

17. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: (Cu) ²⁺ +Mg ²⁺ )/(Li ⁺ +Al ³⁺ ) 0.3 to 6.0.

18. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: (Cu) ²⁺ +Mg ²⁺ )/(Li ⁺ +Al ³⁺ ) 0.5 to 5.0.

19. A glass according to any one of claims 1 to 3, characterised in thatThe composition is expressed in mole percent, wherein: (Cu) ²⁺ +Mg ²⁺ )/(Li ⁺ +Al ³⁺ ) 0.7 to 3.0.

20. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: (Cu) ²⁺ +Mg ²⁺ )/(Li ⁺ +Al ³⁺ ) Is 0.8 to 2.0.

21. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: ln ³⁺ /R ²⁺ Is 0.01 or more.

22. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: ln ³⁺ /R ²⁺ Is 0.01 to 3.0.

23. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: ln ³⁺ /R ²⁺ 0.03 to 1.0.

24. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: ln ³⁺ /R ²⁺ 0.05 to 0.8.

25. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: ln ³⁺ /R ²⁺ 0.07-0.5.

26. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: ln ³⁺ /(Ba ²⁺ +Al ³⁺ ) Is 0.02 or more.

27. A glass according to any one of claims 1 to 3, characterised in thatThe composition is expressed by mole percent, wherein: ln ³⁺ /(Ba ²⁺ +Al ³⁺ ) Is 0.02-2.0.

28. Glass according to any one of claims 1 to 3, characterised in that its composition is expressed in mole percentages in which: ln ³⁺ /(Ba ²⁺ +Al ³⁺ ) 0.05 to 1.0.

29. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: ln ³⁺ /(Ba ²⁺ +Al ³⁺ ) 0.08 to 0.8.

30. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: ln ³⁺ /(Ba ²⁺ +Al ³⁺ ) 0.1 to 0.5.

31. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: p is ⁵⁺ /(Al ³⁺ +Ln ³⁺ ) 5.0 to 50.0.

32. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: p is ⁵⁺ /(Al ³⁺ +Ln ³⁺ ) Is 10.0 to 35.0.

33. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: p ⁵⁺ /(Al ³⁺ +Ln ³⁺ ) Is 12.0 to 30.0.

34. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: p is ⁵⁺ /(Al ³⁺ +Ln ³⁺ ) 15.0 to 25.0.

35.Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: cu (copper) ²⁺ /Ln ³⁺ Is 2.0 or more.

36. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: cu (copper) ²⁺ /Ln ³⁺ Is 2.0 to 40.0.

37. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: cu ²⁺ /Ln ³⁺ 5.0 to 30.0.

38. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: cu (copper) ²⁺ /Ln ³⁺ Is 8.0 to 20.0.

39. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: cu ²⁺ /Ln ³⁺ Is 10.0 to 15.0.

40. Glass according to any one of claims 1 to 3, characterised in that its composition is expressed in mole percentages in which: p ⁵⁺ /R ²⁺ Is 3.0 to 30.0.

41. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: p ⁵⁺ /R ²⁺ Is 3.5 to 25.0.

42. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: p ⁵⁺ /R ²⁺ Is 4.0 to 20.0.

43. A glass according to any one of claims 1 to 3, characterised in that its constituents are in mole percentThe ratio is represented, wherein: p ⁵⁺ /R ²⁺ 5.0 to 10.0.

44. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: ln ³⁺ /F ^- 0.02-10.0.

45. Glass according to any one of claims 1 to 3, characterised in that its composition is expressed in mole percentages in which: ln ³⁺ /F ^- 0.05 to 5.0.

46. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: ln ³⁺ /F ^- 0.05 to 2.0.

47. Glass according to any one of claims 1 to 3, characterised in that its composition is expressed in mole percentages in which: ln ³⁺ /F ^- Is 0.1 to 1.0.

48. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: f ^- /Cu ²⁺ 0.05 to 2.0.

49. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: f ^- /Cu ²⁺ Is 0.1 to 1.5.

50. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: f ^- /Cu ²⁺ Is 0.2 to 1.0.

51. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: f ^- /Cu ²⁺ 0.3 to 0.8.

52. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: p ⁵⁺ :56 to 68 percent; and/or Al ³⁺ :0.5 to 8 percent; and/or Cu ²⁺ :6 to 20 percent; and/or Rn ⁺ :7 to 20 percent; and/or R ²⁺ :3 to 16 percent; and/or Ln ³⁺ :0.1 to 6 percent; and/or Zn ²⁺ :0 to 5 percent; and/or Si ⁴⁺ :0 to 2 percent; and/or B ³⁺ :0 to 2 percent; and/or Zr ⁴⁺ :0 to 2 percent; and/or Sb ³⁺ +Sn ⁴⁺ +Ce ⁴⁺ :0 to 0.5%, the Rn ⁺ Is Li ⁺ 、Na ⁺ 、K ⁺ One or more of, R ²⁺ Is Mg ²⁺ 、Ca ²⁺ 、Sr ²⁺ 、Ba ²⁺ One or more of, ln ³⁺ Is La ³⁺ 、Gd ³⁺ 、Y ³⁺ One or more of (a).

53. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: p ⁵⁺ :60 to 65 percent; and/or Al ³⁺ :1 to 5 percent; and/or Cu ²⁺ :8 to 15 percent; and/or Rn ⁺ :10 to 17 percent; and/or R ²⁺ :5 to 14 percent; and/or Ln ³⁺ :0.5 to 4 percent; and/or Zn ²⁺ :0 to 2 percent; and/or Si ⁴⁺ :0 to 1 percent; and/or B ³⁺ :0 to 1 percent; and/or Zr ⁴⁺ :0 to 1 percent; and/or Sb ³⁺ +Sn ⁴⁺ +Ce ⁴⁺ :0 to 0.1%, the Rn ⁺ Is Li ⁺ 、Na ⁺ 、K ⁺ One or more of, R ²⁺ Is Mg ²⁺ 、Ca ²⁺ 、Sr ²⁺ 、Ba ²⁺ One or more of, ln ³⁺ Is La ³⁺ 、Gd ³⁺ 、Y ³⁺ One or more of (a).

54. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: li ⁺ :5 to 25 percent; and &Or Na ⁺ :0 to 10 percent; and/or K ⁺ :0 to 10 percent; and/or Mg ²⁺ :0 to 15 percent; and/or Ca ²⁺ :0 to 10 percent; and/or Sr ²⁺ :0 to 10 percent; and/or Ba ²⁺ :0 to 10 percent; and/or La ³⁺ :0 to 5 percent; and/or Gd ³⁺ :0 to 5 percent; and/or Y ³⁺ ：0～6％。

55. Glass according to any one of claims 1 to 3, characterised in that its composition is expressed in mole percentages in which: li ⁺ :8 to 20 percent; and/or Na ⁺ :0 to 5 percent; and/or K ⁺ :0 to 5 percent; and/or Mg ²⁺ :0.5 to 10 percent; and/or Ca ²⁺ :0 to 5 percent; and/or Sr ²⁺ :0 to 5 percent; and/or Ba ²⁺ :0.5 to 8 percent; and/or La ³⁺ :0 to 3 percent; and/or Gd ³⁺ :0 to 3 percent; and/or Y ³⁺ ：0.1～5％。

56. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: li ⁺ :10 to 16 percent; and/or Na ⁺ :0 to 2 percent; and/or K ⁺ :0 to 2 percent; and/or Mg ²⁺ :2 to 8 percent; and/or Ca ²⁺ :0 to 2 percent; and/or Sr ²⁺ :0 to 2 percent; and/or Ba ²⁺ :1 to 6 percent; and/or La ³⁺ :0 to 2 percent; and/or Gd ³⁺ :0 to 2 percent; and/or Y ³⁺ ：0.5～3％。

57. Glass according to claim 1 or 2, characterised in that its composition, expressed in mole percentages, contains in addition to the anionic component: cl ^- +Br ^- +I ^- ：0～2％。

58. Glass according to claim 1 or 2, characterised in that its composition, expressed in mole percentages, contains in addition to the anionic component: cl ^- +Br ^- +I ^- ：0～1％。

59. Glass according to claim 1 or 2, characterised in that its composition, expressed in mole percentages, contains in addition to the anionic component: cl ^- +Br ^- +I ^- ：0～0.5％。

60. Glass according to any one of claims 1 to 3, characterised in that its composition, expressed in mole percentages, is such that: o is ^2- :85 to 99.5 percent; and/or F ^- ：0.5～15％。

61. Glass according to any one of claims 1 to 3, characterised in that its composition is expressed in mole percentages in which: o is ^2- :88 to 99 percent; and/or F ^- ：1～12％。

62. Glass according to any one of claims 1 to 3, characterised in that its composition is expressed in mole percentages in which: o is ^2- :91 to 98 percent; and/or F ^- ：2～9％。

63. The glass according to any one of claims 1 to 3, wherein the glass has a transition temperature T _g Below 410 ℃; and/or a density p of 3.3g/cm ³ The following; and/or coefficient of thermal expansion alpha _20-120℃ Is 110 x 10 ^-7 below/K; and/or hardness H _v Is 380kgf/mm ² The above; young's modulus E of 5500X 10 ⁷ ～8500×10 ⁷ Pa。

64. The glass according to any one of claims 1 to 3, wherein the glass has a transition temperature T _g Below 400 ℃; and/or a density p of 3.2g/cm ³ The following; and/or coefficient of thermal expansion alpha _20-120℃ Is 100 x 10 ^-7 below/K; and/or hardness H _v 390kgf/mm ² The above; young's modulus E of 6000X 10 ⁷ ～8000×10 ⁷ Pa。

65. The glass according to any one of claims 1 to 3, which is characterized in thatCharacterized in that the glass has a transition temperature T _g Below 390 ℃; and/or a density p of 3.1g/cm ³ The following; and/or coefficient of thermal expansion alpha _20-120℃ Is 95X 10 ^-7 below/K; and/or hardness H _v Is 400kgf/mm ² The above; young's modulus E of 6500X 10 ⁷ ～7500×10 ⁷ Pa。

66. The glass according to any one of claims 1 to 3, wherein the glass has a transition temperature T _g Is 370 to 390 ℃; and/or a density rho of 3.0g/cm ³ The following; and/or hardness H _v Is 410kgf/mm ² The above.

67. A glass according to any one of claims 1 to 3, wherein the glass has a thickness of 0.5mm or less and a wavelength λ corresponding to a transmittance of 50% in a spectral transmittance in a wavelength range of 500 to 700nm ₅₀ Is 635nm or less.

68. A glass according to any one of claims 1 to 3, wherein the glass has a thickness of 0.5mm or less and a wavelength λ corresponding to a transmittance of 50% in a spectral transmittance in a wavelength range of 500 to 700nm ₅₀ 600-630 nm.

69. A glass according to any one of claims 1 to 3, wherein the glass has a thickness of 0.5mm or less, and has a spectral transmittance in a wavelength range of 500 to 700nm, and a wavelength λ corresponding to a transmittance of 50% ₅₀ 610 to 625nm.

70. A glass according to any one of claims 1 to 3, having a transmittance τ at 400nm of glass with a thickness of 0.5mm or less ₄₀₀ More than 80.0 percent; and/or a transmittance at 500nm τ ₅₀₀ More than 83.0 percent; and/or a transmittance at 1100nm τ ₁₁₀₀ Is 10.0% or less.

71. Glass according to any of claims 1 to 3, characterised in thatA transmittance τ at 400nm of a glass having a thickness of 0.5mm or less ₄₀₀ Is more than 82.0 percent; and/or a transmittance at 500nm τ ₅₀₀ More than 85.0 percent; and/or a transmittance at 1100nm tau ₁₁₀₀ Is 7.0% or less.

72. A glass according to any one of claims 1 to 3, characterized in that the glass has a thickness of 0.5mm or less and a transmittance τ at 400nm ₄₀₀ 84.0% or more; and/or a transmittance at 500nm τ ₅₀₀ Is more than 88.0 percent; and/or a transmittance at 1100nm τ ₁₁₀₀ Is 5.0% or less.

73. A glass according to any one of claims 1 to 3, characterised in that the transmission τ at 1100nm is ₁₁₀₀ Is 3.0% or less.

74. The glass of claim 67, wherein the glass has a thickness of 0.05 mm to 0.4mm.

75. The glass of claim 67, wherein the glass has a thickness of 0.1mm to 0.3mm.

76. The glass of claim 67, wherein the glass has a thickness of 0.1mm or 0.15mm or 0.2mm or 0.25mm.

77. A glass member comprising the glass of any one of claims 1 to 76.

78. An optical filter comprising the glass according to any one of claims 1 to 76 or comprising the glass element according to claim 77.

79. A portable communication device comprising a glass according to any one of claims 1 to 76, or comprising a glass element according to claim 77, or comprising an optical filter according to claim 78.

80. An intelligent wearable device, comprising the glass of any one of claims 1 to 76, or comprising the glass element of claim 77, or comprising the optical filter of claim 78.

81. A photographic device comprising a glass as claimed in any one of claims 1 to 76, or comprising a glass element as claimed in claim 77, or comprising an optical filter as claimed in claim 78.

82. An image pickup apparatus comprising the glass according to any one of claims 1 to 76, or comprising the glass element according to claim 77, or comprising the optical filter according to claim 78.

83. A display device comprising a glass according to any one of claims 1 to 76, or comprising a glass element according to claim 77, or comprising an optical filter according to claim 78.

84. A monitoring device comprising a glass according to any one of claims 1 to 76, or comprising a glass element according to claim 77, or comprising an optical filter according to claim 78.